Home
Class 11
MATHS
Find the values of cos 2A, A lies in the...

Find the values of cos 2A, A lies in the first quadrant, when
cos A = `(15)/(17)`

Text Solution

Verified by Experts

The correct Answer is:
`(161)/(289)`
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • TRIGONOMETRY

    SURA PUBLICATION|Exercise EXERCISE 3.6|21 Videos
  • TRIGONOMETRY

    SURA PUBLICATION|Exercise EXERCISE 3.7|14 Videos
  • TRIGONOMETRY

    SURA PUBLICATION|Exercise EXERCISE 3.4|37 Videos
  • SURAS MODEL QUESTION PAPER -2

    SURA PUBLICATION|Exercise section -IV|7 Videos
  • TWO DIMENSIONAL ANALYTICAL GEOMETRY

    SURA PUBLICATION|Exercise ADDITIONAL PROBLEMS - SECTION - D|3 Videos

Similar Questions

Explore conceptually related problems

Find the value of cos 2A, A lies in the first quadrant, when cos A=15/17

Find the values of cos 2A, A lies in the first quadrant, when sin A = (4)/(5)

Find the value of cos 2A, A lies in the first quadrant, when sinA=4/5

Find the values of cos 2A, A lies in the first quadrant, when tan A = (16)/(63) .

Find the value of cos 2A, A lies in the first quadrant, when tanA=16/63

Find the values of cos 15^(@)

Find the values of cos 18^(@)

Find the values of cos 36^(@)

Find the value of cos 36^(@)

Find the value of cos 36^(@)